{"id":"vidhyamitra:city-day:kozhikode:1990-08-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kozhikode/1990-08-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-08-13","date_display":"August 13, 1990 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1990,"month":8,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448116.770833,"kali_year":5092,"ahargana":1859651.2708,"sun":{"sidereal_longitude":115.7458,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":17.9851,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":262.2392,"elapsed_within_tithi_degrees":10.2392},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2,"moon_longitude":17.9851,"elapsed_within_degrees":4.6517},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":133.7309},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":1990,"month":8,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2448116.770833,"ahargana":1859651.2708,"kali_year":5092,"ayanamsa_lahiri":23.7219,"grahas":{"sun":{"sidereal_longitude":116.324994,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":18.058793999999978,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false,"latitude":4.4989},"mars":{"sidereal_longitude":26.303894000000014,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":143.84279400000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":95.158994,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"venus":{"sidereal_longitude":95.36539400000004,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":266.09129400000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":286.7264,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":106.7264,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1990,"month":8,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448116.770833,"kali_year":5092,"ahargana":1859651.2708,"sun":{"sidereal_longitude":115.7458,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":17.9851,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":262.2392,"elapsed_within_tithi_degrees":10.2392},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2,"moon_longitude":17.9851,"elapsed_within_degrees":4.6517},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":133.7309},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.499,"elongation":97.761},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.499,"opposition_distance":82.239}},"eclipse_window_40days":[]},"city":{"slug":"kozhikode","name":"Kozhikode (Calicut), Kerala","lat":11.2588,"lon":75.7804,"tz_offset_hours":5.5,"state":"Kerala","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"kozhikode","name":"Kozhikode (Calicut), Kerala","lat":11.2588,"lon":75.7804,"tz_offset_hours":5.5,"state":"Kerala","country":"IN","tier":"tier-1"},"sunriseLocal":"06:16","sunsetLocal":"18:47","solarNoonLocal":"12:31","dayLengthHours":12.519275336630109,"dayLengthDisplay":"12 Hours 31 Mins 09 Secs","nightLengthDisplay":"11 Hours 28 Mins 51 Secs","moonriseLocal":"23:43","moonsetLocal":"12:13","rahuKala":{"name":"Rāhu Kāla","start":"07:50","end":"09:24","startHours":7.8292704277339675,"endHours":9.394179844812731,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:58","end":"12:31","startHours":10.959089261891496,"endHours":12.523998678970258,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:05","end":"15:39","startHours":14.088908096049021,"endHours":15.653817513127786,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:11","end":"09:36","startHours":9.185525255868896,"endHours":9.602834433756566,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:47","end":"07:07","startHours":6.785997483014792,"endHours":7.119844825324928,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:06","end":"12:56","startHours":12.106689501082588,"endHours":12.941307856857929,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:36","end":"05:26","startHours":4.595124299104523,"endHours":5.429742654879863,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:13","end":"06:16","startHours":5.221088065936028,"endHours":6.264361010655204,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:37","end":"15:27","startHours":14.61054456840861,"endHours":15.44516292418395,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:35","end":"18:59","startHours":18.583636347285314,"endHours":18.983636347285312,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:47","end":"19:18","startHours":18.783636347285313,"endHours":19.3052728196449,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:32","end":"20:17","startHours":18.533636347285313,"endHours":20.283636347285313,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:06","end":"00:56","startHours":24.106689501082588,"endHours":24.94130785685793,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:16","end":"07:50","startHours":6.264361010655204,"endHours":7.8292704277339675,"quality":"auspicious"},{"name":"Kāla","start":"07:50","end":"09:24","startHours":7.8292704277339675,"endHours":9.394179844812731,"quality":"inauspicious"},{"name":"Śubha","start":"09:24","end":"10:58","startHours":9.394179844812731,"endHours":10.959089261891496,"quality":"auspicious"},{"name":"Roga","start":"10:58","end":"12:31","startHours":10.959089261891496,"endHours":12.523998678970258,"quality":"inauspicious"},{"name":"Udveg","start":"12:31","end":"14:05","startHours":12.523998678970258,"endHours":14.088908096049021,"quality":"inauspicious"},{"name":"Chala","start":"14:05","end":"15:39","startHours":14.088908096049021,"endHours":15.653817513127786,"quality":"neutral"},{"name":"Labha","start":"15:39","end":"17:13","startHours":15.653817513127786,"endHours":17.21872693020655,"quality":"auspicious"},{"name":"Amṛta","start":"17:13","end":"18:47","startHours":17.21872693020655,"endHours":18.783636347285313,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:47","end":"20:13","startHours":18.783636347285313,"endHours":20.21872693020655,"quality":"neutral"},{"name":"Labha","start":"20:13","end":"21:39","startHours":20.21872693020655,"endHours":21.653817513127784,"quality":"auspicious"},{"name":"Amṛta","start":"21:39","end":"23:05","startHours":21.653817513127784,"endHours":23.08890809604902,"quality":"auspicious"},{"name":"Kāla","start":"23:05","end":"00:31","startHours":23.08890809604902,"endHours":24.52399867897026,"quality":"inauspicious"},{"name":"Śubha","start":"00:31","end":"01:58","startHours":24.52399867897026,"endHours":25.959089261891496,"quality":"auspicious"},{"name":"Roga","start":"01:58","end":"03:24","startHours":25.959089261891496,"endHours":27.394179844812733,"quality":"inauspicious"},{"name":"Udveg","start":"03:24","end":"04:50","startHours":27.394179844812733,"endHours":28.829270427733967,"quality":"inauspicious"},{"name":"Chala","start":"04:50","end":"06:16","startHours":28.829270427733967,"endHours":30.264361010655204,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:16","end":"07:16","startHours":6.264361010655204,"endHours":7.264361010655204,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:16","end":"08:16","startHours":7.264361010655204,"endHours":8.264361010655204,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:16","end":"09:16","startHours":8.264361010655204,"endHours":9.264361010655204,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:16","end":"10:16","startHours":9.264361010655204,"endHours":10.264361010655204,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:16","end":"11:16","startHours":10.264361010655204,"endHours":11.264361010655204,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:16","end":"12:16","startHours":11.264361010655204,"endHours":12.264361010655204,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:16","end":"13:16","startHours":12.264361010655204,"endHours":13.264361010655204,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:16","end":"14:16","startHours":13.264361010655204,"endHours":14.264361010655204,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:16","end":"15:16","startHours":14.264361010655204,"endHours":15.264361010655204,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:16","end":"16:16","startHours":15.264361010655204,"endHours":16.264361010655204,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:16","end":"17:16","startHours":16.264361010655204,"endHours":17.264361010655204,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:16","end":"18:16","startHours":17.264361010655204,"endHours":18.264361010655204,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:16","end":"19:16","startHours":18.264361010655204,"endHours":19.264361010655204,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:16","end":"20:16","startHours":19.264361010655204,"endHours":20.264361010655204,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:16","end":"21:16","startHours":20.264361010655204,"endHours":21.264361010655204,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:16","end":"22:16","startHours":21.264361010655204,"endHours":22.264361010655204,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:16","end":"23:16","startHours":22.264361010655204,"endHours":23.264361010655204,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:16","end":"00:16","startHours":23.264361010655204,"endHours":24.264361010655204,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:16","end":"01:16","startHours":24.264361010655204,"endHours":25.264361010655204,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:16","end":"02:16","startHours":25.264361010655204,"endHours":26.264361010655204,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:16","end":"03:16","startHours":26.264361010655204,"endHours":27.264361010655204,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:16","end":"04:16","startHours":27.264361010655204,"endHours":28.264361010655204,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:16","end":"05:16","startHours":28.264361010655204,"endHours":29.264361010655204,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:16","end":"06:16","startHours":29.264361010655204,"endHours":30.264361010655204,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":14.797765073071524,"eotMinutes":-4.561520738215509,"ayanamsa":23.7219}},"calendars":{"vikram_samvat":2047,"vikram_samvatsara":"Subhānu","saka_samvat":1912,"saka_samvatsara":"Pramoda","bengali_samvat":1397,"malayalam_era":1166,"nanakshahi_year":521,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Saptamī · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"kozhikode"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga August 13, 1990 CE · Kozhikode (Calicut), Kerala · Vidhyamitra","description":"August 13, 1990 CE for Kozhikode (Calicut), Kerala: Kṛṣṇa Saptamī, sūryodaya 06:16, sūryāsta 18:47.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kozhikode/1990-08-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kozhikode/1990-08-13","sa":"https://sa.vidhyamitra.com/city/kozhikode/1990-08-13","hi":"https://hi.vidhyamitra.com/city/kozhikode/1990-08-13","x-default":"https://vidhyamitra.com/city/kozhikode/1990-08-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T07:36:49.662Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-06-02T07:36:49.662Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T07:36:49.662Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}